Chemistry Jokes

Chemistry need not always be serious!IT can also be fun!Here are some jokes to lighten up the mood and to make you like chemistry even more!

What did the bartender say when oxygen,hydrogen,sulphur,sodium,phosphorus walked into his bar?
OH SNaP!


What do you do with dad chemists?
Barium!(Bury him)!


Why are chemists so great for solving problems?
Because they have all solutions!


What is a chemist's favourite tree?
Chemistree!


How do sulphur and oxygen communicate?
Through Sulphone(Cellphone)!


What did the cow say to molebdynum(Mo) and Oxygen(O)?
MoO!


Two chemists walked into a bar.The first one said "I'll have some H2O" and the second one said "I'll have some H2O too(H2O2 Hydrogen Peroxide Poisonous) and he died!

All acids and sources

1. Acetic acid - vinegar
2. Tartaric acid - grapes
3. Lactic acid - milk
4. Oxalic acid - spinach
5. Citric acid - apple,oranges
6. Malic acid - sour taste in fruits
7. Nitric acid - TNT
8. Sulphuric acid - car batteries
9. Formic acid - Bee sting

Indicators

Indicators are substances that show a change in colour when brought in contact with an acid or base.
Some Common indicators are Phenophthalein,Methyl Orange and Red/Blue Litmus Paper.
Below is a table which shows the colour change of these indicators

Indicators can also be prepared from plant.Such indicators are called Natural Indicators.
A Universal Indicator is a mixture of indicators chosen such that it shows a different colour for different PH values.It can also be soaked into a paper called PH paper.

  

List of all elements starting with 'D' and 'E'

Elements starting with "D"
Darmstaditium-Ds
Dubnium-Db
Dysprosium-Dy


Elements starting with "E"
Einsteinium-Es
Erbium-Er
Europium-Eu

Acidic,Basic and Neutral Substances

Acidic substances

Materials that contain an acid in them are called acidic substances.

Acids are of 2 types-

• Mineral Acid
• Organic Acid

Mineral Acid

A mineral acid is an acid derived from on or more inorganic compounds.They are not Organic.

Examples are-Sulphuric Acid,Nitric Acid.

Organic Acid

They occur naturally in animal and plant materials

Ex: Tartaric Acid from Grapes,Lactic acid from milk.

Characteristics of Acidic Substances are-

• They have a sour taste and are corrosive
• They are soluble in water

Acids can also be either dilute or concentrated.

Acids with more amount of water are called dilute acids.Acids with less amount of water are called concentrated acids.

Acids can also be either strong or weak.

Strong acids are highly corrosive and can cause burns.Ex:Nitric,Sulphuric Acid

Weak acids are not so destructive.

Basic Substances

Substances that contain a base are called basic substances.

Examples are Sodium Hydroxide,Calcium Hydroxide

Bases have many properties-

• They are bitter to taste
• Solutions of bases have a soapy touch
• They may or may not be soluble in water.

Bases that are soluble in water are called Alkalis.

Ex:Potassium Hydroxide,Sodium Hydroxide.

Bases can also be strong or weak

Strong bases are corrosive and can burn skin

Examples:Sodium Hydroxide

Examples of weak bases are Copper Hydroxide,Zinc Hydroxide

Neutral Substances

Some substances are neither Acidic nor Basic.These are called Neutral Substance.

When an acid reacts with a base,Neutralization reaction takes place and a Neutral Salt is formed.Here is an example of a neutralization reaction.

In this reaction Hydrochloric Acid reacts with Sodium Hydroxide to from Sodium Chloride(Common Salt) and Water.

Metals-In Brief

This is a brief note on metals and it will help you remember the important points.


A metal can be defined as an element or a compound that easily conducts both electricity and heat.

Some examples of Common metals are Iron(Ferrum),Copper(Cuprum),Nickel,Aluminium,etc.


Most metals are solid at room temperature.Mercury,a well known metal used in thermometers is liquid at room temperature.Most metals also have a high melting point.But Galium and Cesium are exceptions as they melt easily at about 86 F.

Metals have many properties which are

• Chemical Property
• Physical Property
• Mechanical Property And
• Electrical Property

Metals can be classified into the following groups

• Base metal-The chemical term Base metal is any metal that oxidizes or corrodes easily
• Noble Metals-Metals that are resistant to oxidization or corrosion.
• Ferrous metals-Metals that contain Iron as element,alloy or compound.
• Precious metals-Rare metals which have high value

ARGON [Ar]

Argon  /ˈɑrɡɒn/ ar-gon is a chemical element represented by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of theperiodic table (noble gases). Argon is the third most common gas in the Earth's atmosphere, at 0.93%, making it more common than carbon dioxide. Nearly all of this argon is radiogenic argon-40 derived from the decay of potassium-40 in the Earth's crust. In the universe, argon-36 is by far the most common argon isotope, being the preferred argon isotope produced by stellar nucleosynthesis in supernovas.Since argon is a noble gas,we cannot take a picture of it.However,I can only show you this:
 

BEST JOKES

What's the difference between Chemistry and cooking?

In Chemistry, you should never lick the spoon.

A group of organic molecules were having a party, when a group of robbers broke into the room and stole all of the guest's joules. A tall, strong man, armed with a machine gun came into the room and killed the robbers one by one. The guests were very grateful to this man, and they wanted to know who he was. He replied: My name is BOND, Covalent Bond.

The optimist sees the glass half full.
The pessimist sees the glass half empty.
The chemist see the glass completely full, half in the liquid state and half in the vapor state.